Question # 1

A fog droplets are in freely falling condition,. the ratio of their radii is 2:3, the ratio of their terminal velocities will be.

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2:3

4:6

4:9

9:4

The SI unit of flow rate are

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m-sec^-2

m³-sec^-1

m³-sec^-2

m-sec^-3

The dimensional of potential energy per unit volume are same as that of.

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Work

Pressure

Speed

Density

1 torr in Nm-2 is expressed as.

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130.5 Nm-2

133.3 N m-2

140.2 Nm-2

135.2 Nm-2

The flow of a fluid is of

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One type

Two types

Three types

Four type

Let A = Area of cross section of pipe, v = speed of fluid, then 'Av' is called.

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Volume flow rate

Energy flow rate

Mass flow rate

Pressure flow rate

The diastolic pressure of a normal healthy person is.

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120 torr

110 torr

100 torr

75-80 torr

The concentration of red blood cells in the blood is nearly.

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40%

60%

25%

50%

The regular or steady flow of fluid is called

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Stream line

Turbulent flow

Average flow

None of these

Bunsen burner works on the principle of.

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Venturi effect

Terricilli's effect

Bernoulli's effect

None of these

The density of blood is nearly equal to.

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Air

Milk

Honey

Water

The fluid is said to be incompressible, if its density is.

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Zero

Very high

Constant

Very small

Opted unit to measure blood pressure is.

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N/m2

Pascal

mm of Hg

N.m2

A 2 meter of high tank is full of water. If a hole appears at its middle, then the speed of efflux is.

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4.4 ms-1

10 ms-1

6.2 ms-1

20 ms-1

The law of conservation of energy gives us

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Equation of continuity

Stock's law

Bernoulli's equation

Viscosity

The unsteady flow of a fluid is called

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Stream line

Turbulent flow

Average flow

Viscous flow

The law of conservation of mass gives.

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Beronoulli's

Venturi relation

Torricelli's theorem

Equation of continuity

Blood has density equal to that of

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Mercury

Sodium

Honey

Water

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Physics Fsc Part 1 Chapter 6 Online Test MCQs With Answers

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